Officials say Su Hyon Dillon, the wife of a Washington State lacrosse coach, confessed to having sex with an 11-year-old boy. (Charles Mann/Getty Images/iStockphoto)

The wife of a Washington State lacrosse coach stands accused of raping a preteen boy.

Su Hyon Dillon reportedly had sex with a then-11-year-old boy who was a member of her husband’s squad, according to TV station KOMO.

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According to jarring court papers, Dillon engaged in sexual activity with the child several times over a 13-month period between 2014 and 2015.

“He was spending the night at her house. She came into the room and laid next to him,” read the documents. In another instance, the papers stated, “They were in San Diego on a lacrosse trip and she came to his room.”

Investigators — who said Dillon considered herself Emerald Ridge Lacrosse Club’s team mom — claim the traumatized boy, who has not been identified, began “cutting himself, was suicidal and missing school.”

As a result, the boy’s mother sent him to Virginia to live with his father. The boy then eventually dropped the rape bombshell during counseling sessions.

Charging documents reveal Dillon admitted to officials that she had been intimate with the boy. Detectives, paraphrasing Dillon, said, “She was the adult and should have known better."

She also reportedly mentioned she and her husband had been suffering marital strife and that the young victim made her feel good.

“This is somebody who has taken advantage of kids who are 10 and 11 years old,” said Pierce County Sheriff Department Detective Ed Troyer. “This is disturbing as a parent because you are sending your kid off to a friend’s house with what appeared to be a parent of parents who also coached the team, upstanding in the community, only to have your son victimized.”